pam_exec.so [debug] [expose_authtok] [seteuid] [quiet] [log=file]
pam_exec is a PAM module that can be used to run an external command.
The child's environment is set to the current PAM environment list, as
returned by pam_getenvlist(3) In addition, the following PAM items are
exported as environment variables: PAM_RHOST, PAM_RUSER, PAM_SERVICE,
PAM_TTY, PAM_USER and PAM_TYPE, which contains one of the module types:
account, auth, password, open_session and close_session.
Commands called by pam_exec need to be aware of that the user can have
controll over the environment.
Print debug information.
During authentication the calling command can read the password
from stdin(3). Only first PAM_MAX_RESP_SIZE bytes of a password are
provided to the command.
The output of the command is appended to file
Per default pam_exec.so will echo the exit status of the external
command if it fails. Specifying this option will suppress the
Per default pam_exec.so will execute the external command with the
real user ID of the calling process. Specifying this option means
the command is run with the effective user ID.
MODULE TYPES PROVIDED
All module types (auth, account, password and session) are provided.
The external command was run successfully.
No argument or a wrong number of arguments were given.
A system error occurred or the command to execute failed.
pam_setcred was called, which does not execute the command.
with effective user ID.
pam.conf(5), pam.d(5), pam(7)
pam_exec was written by Thorsten Kukuk <email@example.com>.
Linux-PAM Manual 03/17/2016 PAM_EXEC(8)
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